Merge pull request #73 from teebrz/master

Add apt caching to travis config
Merge pull request #74 from teebrz/master

Fix travis config
- Implemented if-to-if peephole pattern
Merge branch 'master' of github.com:maximecb/Higgs into dev-maxime
Fix for the string.trim bug where all whitespce string was not trimmed.
Merge pull request #79 from zimbabao/fix-edge-case-in-trim

Fix for the string.trim bug where all whitespce string was not trimmed.
- Added notes
Merge branch 'master' of github.com:maximecb/Higgs into dev-maxime
Simple implementation of parseFloat.
Added tests.
Merge pull request #76 from zimbabao/implement-parseFloat

Simple implementation of parseFloat.
Merge branch 'master' of github.com:maximecb/Higgs into dev-maxime
- Changes to stdlib/global tests
	- add support for passing args to scripts. See issue #78